Official NHA Assessment

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Line Horse
Fire Force
Reference for assessment
Exact Matches
1 / 7
Calculated = Official
Close Matches
3 / 7
Within 2 points
Significant Diffs
2 / 7
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Stampede Ahead       2    56.5    1    0.00     0.0   65    60           60    -5
2    Fire Force           4    58.5    2    5.70     2.0   60    60           60    +0
3    Cali Bullet          3    52.5    3    6.10     5.0   72    42           62    -10
4    Osmium               3    60.0    4    11.80    5.0   60    57           57    -3
5    Can We Start         4    56.5    5    19.10    2.0   -     56           56    +56
6    Baltic Assayer       2    55.0    6    21.50    0.0   53    57           57    +4
7    Manikongo (AUS)      3    60.0    7    37.80    5.0   55    57           57    +2
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Stampede Ahead 65 76 60 +16 0.0 -
2 Fire Force Line 60 60 60 ✓ Match 2.0
3 Cali Bullet 72 70 62 +8 5.0 -
4 Osmium 60 59 57 +2 5.0 -
5 Can We Start - 59 56 +3 2.0 -
6 Baltic Assayer 53 53 57 -4 0.0 -
7 Manikongo (AUS) 55 55 57 -2 5.0 -
Assessment Methodology
Calculation Steps:
  1. Identify Line Horse - consistent performer used as reference
  2. Calculate WFA Allowance based on age, distance, and month
  3. Apply Drag Adjustment for beaten margin
  4. Calculate Actual Weight Performance:
    Weight - Drag - WFA
  5. Compare to Line Horse to determine race rating
  6. Apply special rules (maiden caps, layoff allowance)
Key Formulas:
  • Drag Effect: Varies by distance (see Benchmarks page)
  • 1 length ≈ 1kg at 1 mile (1600m)
  • WFA Scale: Based on Admiral Rous's 1855 table
  • Rating Points: 1kg = 2 rating points